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Shrubs

Berberis thunbergii

Japanese barberry

Dense, rounded deciduous shrub about 1m tall, with spiny fresh green leaves, bluish-green beneath, to 3cm long, turning red and orange in autumn. Racemes of small yellow flowers, flushed red on sepals, are produced along the branches in mid spring, glossy bright scarlet berries follow

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Ultimate height

1–1.5 metres

Time to ultimate height

5–10 years

Ultimate spread

1–1.5 metres

Chalk

Clay

Loam

Sand

Moisture

Moist but well–drained, Well–drained

pH

Acid, Alkaline, Neutral

	Stem	Flower	Foliage	Fruit
Spring
Summer
Autumn
Winter

Full sun
Partial shade

Aspect

South–facing or North–facing or West–facing or East–facing

Exposure

Exposed or Sheltered

Hardiness
Hardiness ratings
All ratings refer to the UK growing conditions unless otherwise stated. Minimum temperature ranges (in degrees C) are shown in brackets
H1a: under glass all year (>15C)
H1b: can be grown outside in the summer (10 - 15)
H1c: can be grown outside in the summer (5 - 10)
H2: tolerant of low temperatures, but not surviving being frozen (1 to 5)
H3: hardy in coastal and relatively mild parts of the UK (-5 to 1)
H4: hardy through most of the UK (-10 to -5)
H5: hardy in most places throughout the UK even in severe winters (-15 to -10)
H6: hardy in all of UK and northern Europe (-20 to -15)
H7: hardy in the severest European continental climates (< -20)

Botanical details

Family: Berberidaceae
Native to GB / Ireland: No
Foliage: Deciduous
Habit: Bushy
Potentially harmful: Fruit are ornamental - not to be eaten. Wear gloves and other protective equipment when handling. Pets: Fruit are ornamental - not to be eaten - see the HTA guide to potentially harmful plants for further information and useful contact numbers
Genus: Berberis can be deciduous or evergreen shrubs with spiny shoots bearing simple, often spine-toothed leaves, and small yellow or orange flowers in axillary clusters or racemes, followed by small berries
Name status: Correct
Plant range: Japan

How to grow

Cultivation

Grows in any soil except waterlogged, in sun or part shade. A sunny position will encourage fruiting and autumn colour, see berberis cultivation for further advice

Propagation

Propagate by seed or propagate from softwood or semi-ripe cuttings in summer

Suggested planting locations and garden types

Coastal
Cottage and informal garden
Wildlife gardens
Low Maintenance
Hedging and screens
Flower borders and beds

Pruning

Pruning group 2; trim hedges after flowering

Pests

May be susceptible to aphids and berberis sawfly

Diseases

May be susceptible to powdery mildews and sometimes by honey fungus

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